Sildenafil (Pfizer) 100mg 64 Tablets
To read the patient information leaflet for this product click here https://www.medicines.org.uk/emc/PIL.27847.latest.pdf
Take 50mg approxiamately 60 mins before sexual activity - then adjust the dose to 25mg to 100mg depending on how well it is working. Maximum dose is 100mg daily as a single dose. Max of one dose per day.